Method, apparatus and article of manufacture for disabling on-demand access to computerized resources on a computerized apparatus. The rail member and the track are engageable together to facilitate movement of the carriage assembly with respect to the base housing assembly. The traverse switch unit is mounted on the handle such that the traverse switch unit is accessible for movement by the operator toward the first position of the traverse switch unit corresponding to the traverse mode of the apparatus without the operator having to generally release the handle. The metal spring leaf selectively electrically contacts the electrical connection portion through pressing the pressing member and outputs a second signal. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. The use of highly-reactive cycloolefins can provide exceptional adherence to a low-surface-tension substrate.